TypeError: attempted to get private field on non-instance

When I run lage and it fails, I get this stack trace for some reason:

node:internal/event_target:1094
  process.nextTick(() => { throw err; });
                           ^

TypeError: attempted to get private field on non-instance
    at l5e (path/to/project/.yarn/cache/lage-npm-2.13.0-4638554ef7-a3863a9730.zip/node_modules/lage/dist/lage.js:299:1556)
    at sr (path/to/project/.yarn/cache/lage-npm-2.13.0-4638554ef7-a3863a9730.zip/node_modules/lage/dist/lage.js:299:1661)
    at EventTarget.oee (path/to/project/.yarn/cache/lage-npm-2.13.0-4638554ef7-a3863a9730.zip/node_modules/lage/dist/lage.js:299:6031)
    at [nodejs.internal.kHybridDispatch] (node:internal/event_target:820:20)
    at EventTarget.dispatchEvent (node:internal/event_target:755:26)
    at abortSignal (node:internal/abort_controller:370:10)
    at AbortController.abort (node:internal/abort_controller:392:5)
    at $de.onFail (path/to/project/.yarn/cache/lage-npm-2.13.0-4638554ef7-a3863a9730.zip/node_modules/lage/dist/lage.js:406:24036)
    at $de.run (path/to/project/.yarn/cache/lage-npm-2.13.0-4638554ef7-a3863a9730.zip/node_modules/lage/dist/lage.js:407:521)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)

Start by reproducing the failure by running lage in the reported Yarn setup. Inspect the generated lage/dist/lage.js stack location around line 299 and the abort path around line 406; done means the reported lage run no longer throws this TypeError.